Air Cleaner User Manual

You cannot change this field if you are installing the system from a power
backup.
If the logical volume contains a filesystem, the filesystem is created at the
same size as the logical volume.
Entering a size smaller than the minimum size displayed at the top of the
screen might cause you to run out of filesystem space when restoring the
data from the backup media. If you are installing a system, over-reducing
the root (/) or /usr filesystems usually results in a system installation
failure.
When you change the size, the VG Space box at the top of the screen is
updated to reflect the new amount of space used in the volume group
containing this logical volume.
Copies
The number of copies (mirrors) of the logical volume. A “1” indicates there
is only one copy or that the logical volume is not mirrored. Changing the
number of copies to greater than one causes the logical volume to be
“mirrored” to another disk. Mirroring is usually implemented to keep a
copy of the logical volume on separate physical volumes to protect data
against a hardware failure.
The number of copies cannot be changed if the Stripe Size is a value other
than 0 unless this backup was created on a system running AIX 5.1 or
later.
If the number of copies exceeds the number of physical volumes assigned
to the logical volume (or volume group if no physical volumes are
specifically assigned to this logical volume), you will be asked “Do you
wish to allow more than 1 copy on a single PV? (y/n)”. If you answer
“y”, the new number of copies is accepted. If “n”, the new value is
ignored.
When you change the number of copies, the VG Space box at the top of
the screen is updated to reflect the new amount of space used in the
volume group containing this logical volume.
Priority
The default priority in which the logical volume will be created. This is
especially important if different logical volumes might be contending for
the same region of a particular disk. Setting the priority of a logical
volume to a lower number gives it a higher priority.
By default, the priority is set for logical volumes based on their types. The
logical volumes appear in the logical volume list in the order in which you
want them created. To create one logical volume before another logical
volume, change the priority to less than the other. The next time the logical
volumes are listed, the changed logical volume appears in a different place
in the list.
Note that this field is a two-digit value, sorted first by the first character,
and then by the second. An entry of “1” is sorted after an entry of “06”,so
use two digits for all entries.
Type The current logical volume type. The type should not be changed for
paging, jfslog, dump device, boot logical volumes, and logical volumes
assigned to a file system. Although the type “jfs” is normally used to
indicate filesystem logical volumes, this and other logical volumes, except
11-12 IBM Tivoli Storage Manager for System Backup and Recovery: Installation and User’s Guide